Home / 3,613.47-4,985.11-2,197.18

Finding the Fourth Proportional to 3,613.47, 4,985.11 and 2,197.18

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Solution

The fourth proportional to 3,613.47, 4,985.11 and 2,197.18 is: 3,031.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.47 : 4,985.11 = 2,197.18 : x
  2. Step 2: Convert to fraction form
    3,613.47/4,985.11 = 2,197.18/x
  3. Step 3: Cross multiply
    3,613.47x = 4,985.11 × 2,197.18
  4. Step 4: Simplify right side
    3,613.47x = 10,953,183.99
  5. Step 5: Solve for x
    x = 10,953,183.99/3,613.47
  6. Step 6: Final answer
    x = 3,031.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.